1457421892 has 24 divisors (see below), whose sum is σ = 2584123416. Its totient is φ = 719163648.

The previous prime is 1457421869. The next prime is 1457421929. The reversal of 1457421892 is 2981247541.

It can be written as a sum of positive squares in 4 ways, for example, as 168324676 + 1289097216 = 12974^2 + 35904^2 .

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87118 + ... + 102490.

It is an arithmetic number, because the mean of its divisors is an integer number (107671809).

Almost surely, 2^1457421892 is an apocalyptic number.

It is an amenable number.

1457421892 is a deficient number, since it is larger than the sum of its proper divisors (1126701524).

1457421892 is a wasteful number, since it uses less digits than its factorization.

1457421892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15687 (or 15685 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 1457421892 is about 38176.1953578405. The cubic root of 1457421892 is about 1133.7790546322.

The spelling of 1457421892 in words is "one billion, four hundred fifty-seven million, four hundred twenty-one thousand, eight hundred ninety-two".